User Agent is not accessible in Internet Explorer 8 using ActionScript 3

问题

I am using the code below to find the User Agent using ActionScript 3:

var userAgent:String = ExternalInterface.call("navigator.userAgent.toString");

The code is working in Firefox 13, Google Chrome & Opera, but the User Agent value as null in IE8.

Is there any code snippet that will work here or any other way to implement this?

回答1:

toString is unnecessary, since userAgent is a string property. Use this syntax instead:

var userAgent:String = ExternalInterface.call("function(){return navigator.userAgent}")

来源：https://stackoverflow.com/questions/11310227/user-agent-is-not-accessible-in-internet-explorer-8-using-actionscript-3